Preheat a flat top grill to medium heat then lightly oil.
Add the cubed potatoes to the flat top grill and fry for 5 minutes, moving them regularly until they start to brown.
Add to the flat top the onions and garlic, then cook moving gently for 5 minutes until the onions become translucent.
Add to the flat top grill the fresh chorizo, then cook while moving until brown. Mix in the potatoes and onions together.
Add the fresh eggs and tortillas to the grill. Cook the eggs until your preferred doneness and the tortillas have lightly browned.
Assemble the four chorizo breakfast tortillas in an ‘open-faced’ style with the tortilla on the bottom, the chorizo and potato mix, then topped with the fried egg. Garnish with cilantro.